Improvement in canal-lock gates



J. E. HENK.

Canal-Lock Gate.

N0.l65,\78. Patentedluly 6,1875.

UNITED STATES ATE JOsErE E. RENE, OE ALBANY, NEW YORK.

IMPROVEMENT IN CANAL-LCK GATES.

Specification forming part Of LettersPatent No. E65, l 78, dated July 6, 1875; application tiled Y April 14, 1875.

To all whom it may concern:

Be it known that I, JOSEPH E. RENK, of the city andv county of Albany, and State Of New York, have invented a new and useful Improvement on Canal-Lock Gates, of which the following isa specification:

My invention consists in operating the gates by means of the mechanism herein shown and described, whereby I effect the simultaneous movement Of the two parts of the gate during the operation of opening and closing. l

In the accompanying drawing, which forms a part of this specification, Figure l is a front elevation Ot'vone pair of the gates, and Fig. 2 a plan view of the same.

As shown in the drawing, A represents the stonefwork of the lock for receiving` the gates, built in the usual form. B B are the gates, constructed in the ordinary manner. C C are bevel-gear wheels secured to the heads of the posts D D, which form the pivots upon which the gates turn. E E are arms attached to the wheels G C, and extending to near the joint formed by the two parts of the gate, where they receive the studs F-F, secured to the gates, for the purpose of relieving the posts D, D of a portion Of the strain that would otherwise bel thrown upon them by the wheels C G in opening or closing the gates. G is a framework erected above the gates, for the purpose of supporting the posts D D,

and forming the bearings for the horizontal The Opening of the gates is effected by I throwing the pawl of the proper lever for opening them into contact with its ratchetwheel, and by applying sufficient power thereto, the force of which is transmitted through the pinions I I and wheels C C to the two parts of the gates B B, causing them to Open simultaneously. The closing is effected, by disengaging thepawl of the lever used for Opening from its ratchet-wheel, and throwing the other pawl into contact with its ratchet wheel, and imparting motion to the shaft II in a reversed direction.

By Operating the gates in the manner herein describedthe Opening'and closing of them can be effected in one-half of the time required for Operating them separately in the manner generally adopted.

Instead of attaching the two ratchet-wheels J J to the shaft H, and operating them by 4 two separate levers, as herein shown and described, a single toothed wheel, operated by means of a lever carrying' a double pawl, may be substituted therefor, and arranged to turn the shaft in either direction, the construction of such a lever and double pawl being so well known and 4understood by all mechanicians as to render a description thereof unnecessary. v

Preferably I construct these parts as herein shown and described.

I claim as my invention- The gates B, in combination with the wheels C, pinions I, shaft H, ratchet-wheels J, levers K, and pawls L, when arranged to operate in the mannerzand for the purpose herein specilied.

JOSEPH E. HENK.

Witnesses:

WILLIAM H. Low, SANFORD B. HAsKELL. 

